Re-routing in an integrated access backhaul network

Abstract

An apparatus comprising means for receiving, by an integrated access backhaul node from an integrated access backhaul donor, information for limiting re-routing of data packets over one or more wireless backhaul connections of an integrated access backhaul network; means for receiving, by the integrated access backhaul node, at least one data packet over a first wireless backhaul connection from an originating integrated access backhaul node; means for re-routing, by the integrated access backhaul node, the received at least one data packet over a second wireless backhaul connection based on the received information for limiting re-routing.

The invention claimed is: 
     
       1. An apparatus comprising:
 at least one processor; and 
 at least one non-transitory memory storing instructions that, when executed by the at least one processor, cause the apparatus to: 
 receive, by an integrated access backhaul node from an integrated access backhaul donor, information for limiting re-routing of data packets over one or more wireless backhaul connections of an integrated access backhaul network; 
 receive, by the integrated access backhaul node, at least one data packet over a first wireless backhaul connection from an originating integrated access backhaul node; 
 re-route, by the integrated access backhaul node, the received at least one data packet over a second wireless backhaul connection based on the received information for limiting re-routing, 
 characterized in that re-routing the received at least one data packet comprises
 determine, by the integrated access backhaul node, one or more unallowed wireless backhaul connections for re-routing the received at least one data packet based on the received information for limiting re-routing of data packets; 
 determine, by the integrated access backhaul node, a set of available wireless backhaul connections for re-routing the received at least one data packet based on the determined unallowed wireless backhaul connections; 
 re-route, by the integrated access backhaul node, the received at least one data packet over at least one wireless backhaul connection of the set of available wireless backhaul connections. 
 
 
     
     
       2. The apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to disable re-routing, by the integrated access backhaul node, over one or more wireless backhaul connections based on the received information for limiting re-routing of data packets. 
     
     
       3. The apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to re-route, by the integrated access backhaul node, the received at least one data packet based on the received information for limiting re-routing, when one or more conditions for re-routing have been met. 
     
     
       4. The apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to
 determine, by the integrated access backhaul node, a third wireless backhaul connection for routing the received at least one data packet; and 
 re-route, by the integrated access backhaul node, based on the received information for limiting re-routing the received at least one data packet over the second wireless backhaul connection based on at least one of a radio link failure or a congestion on the determined third wireless backhaul connection. 
 
     
     
       5. The apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to re-route, by the integrated access backhaul node, the received at least one data packet back to the originating integrated access backhaul node, if the set of available wireless backhaul connections for re-routing the received at least one data packet fails to comprise at least one available wireless backhaul connection. 
     
     
       6. The apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to
 maintain, by the integrated access backhaul node, re-routing limitation information based on the information indicating one or more re-routing limitations comprising information for limiting re-routing of data packets comprises information indicating one or more re-routing limitations over one or more wireless backhaul connections based on one or more identifiers of originating integrated access backhaul nodes. 
 
     
     
       7. A method comprising:
 receiving, by an integrated access backhaul node from an integrated access backhaul donor, information for limiting re-routing of data packets over one or more wireless backhaul connections of an integrated access backhaul network; 
 receiving, by the integrated access backhaul node, at least one data packet over a first wireless backhaul connection from an originating integrated access backhaul node; 
 re-routing, by the integrated access backhaul node, the received at least one data packet over a second wireless backhaul connection based on the received information for limiting re-routing, 
 characterized in that re-routing the received at least one data packet comprises
 determine, by the integrated access backhaul node, one or more unallowed wireless backhaul connections for re-routing the received at least one data packet based on the received information for limiting re-routing of data packets; 
 determine, by the integrated access backhaul node, a set of available wireless backhaul connections for re-routing the received at least one data packet based on the determined unallowed wireless backhaul connections; 
 re-route, by the integrated access backhaul node, the received at least one data packet over at least one wireless backhaul connection of the set of available wireless backhaul connections. 
 
 
     
     
       8. A non-transitory program storage device readable with a machine, tangibly embodying a program of instructions executable with the machine for performing operations, the operations comprising:
 receiving, by an integrated access backhaul node from an integrated access backhaul donor, information for limiting re-routing of data packets over one or more wireless backhaul connections of an integrated access backhaul network; 
 receiving, by the integrated access backhaul node, at least one data packet over a first wireless backhaul connection from an originating integrated access backhaul node; 
 re-routing, by the integrated access backhaul node, the received at least one data packet over a second wireless backhaul connection based on the received information for limiting re-routing, 
 characterized in that re-routing the received at least one data packet comprises
 determine, by the integrated access backhaul node, one or more unallowed wireless backhaul connections for re-routing the received at least one data packet based on the received information for limiting re-routing of data packets; 
 determine, by the integrated access backhaul node, a set of available wireless backhaul connections for re-routing the received at least one data packet based on the determined unallowed wireless backhaul connections; 
 re-route, by the integrated access backhaul node, the received at least one data packet over at least one wireless backhaul connection of the set of available wireless backhaul connections.